Few men are as viciously petty as Donald J Trump, the President of the United States, and all it takes to prove this is a single glimpse of the White House this morning.

As the nation mourns the death of Senator John McCain and honors his service to the country, Trump went out of his way to make it clear that he is not sorry to see his vocal critic lose his battle with brain cancer by returning the flags to full mast on Monday morning, cutting short the symbolic show of grief after less than two days.

While it’s fairly tame compared to some of the President’s more egregious insults to injury when it comes to fallen veterans — after all, he hasn’t called him a liar or shamed his family for being Muslim yet — the significance of the early flag lifting was not lost on the nation.

Democratic Rep. Ted Lieu, a veteran himself, took it upon himself to publicly ask the Secretary of Defense, the Secretary of State, and the Secretary of the Interior to bring the flags back down out of respect for the fallen Senator in a string of tweets:

Dear @SecPompeo: You served on active duty. As a nation mourns McCain, it would be appropriate to lower the flag to half staff at all @StateDept buildings. I respectfully request you give that order, regardless of the views of @realDonaldTrump. It is the honorable thing to do. https://t.co/yIllKANhMq

John McCain and Donald Trump publicly clashed for most of Trump’s “political” career, beginning with Trump disrespecting McCain’s military service and mocking his time spent in a Vietnamese POW camp after being shot down.

McCain would then go on to become one of Trump’s loudest Republican critics and even provided the key vote to stop the repeal of the Affordable Care Act and stymie one of Trump’s biggest campaign promises.